Gary L Hunter

US Patent:

6508242, Jan 21, 2003

Filed:

Jan 31, 2001

Appl. No.:

09/774664

Inventors:

Salim A. Jaliwala - Columbus IN
Paul R. Miller - Columbus IN
Larry J. Brackney - Columbus IN
Thomas A. Dollmeyer - Columbus IN
John F. Wright - Columbus IN
Gary L. Hunter - Eagle WI

Assignee:

Cummins, Inc. - Columbus IN

International Classification:

F02D 4100

US Classification:

123676, 73116

Abstract:

A system is provided for estimating engine exhaust temperature in accordance with an exhaust temperature model based on a number of engine operating parameters. In one embodiment, the engine exhaust temperature model is based on current values of engine speed, intake manifold temperature, mass charge flow, default fuel command parameters, and a first set of model constants. In an alternative embodiment, the engine exhaust temperature model is based on current values of engine speed, intake manifold temperature, intake manifold pressure, mass charge flow, default fueling parameters, and a second set of model constants including a lower heating value of fuel constant.

US Patent:

7433776, Oct 7, 2008

Filed:

Apr 18, 2007

Appl. No.:

11/736879

Inventors:

Gary L. Hunter - Elburn IL, US
Andrei Makartchouk - Lombard IL, US

Assignee:

International Engine Intellecutal Property Company, LLC - Warrenville IL

International Classification:

F02D 41/00

US Classification:

701102, 12356822, 60295

Abstract:

A system and method for estimating the effect of forced regeneration of a diesel particulate filter () by post-injection of fuel on fuel dilution of engine motor oil.

US Patent:

7823557, Nov 2, 2010

Filed:

Apr 18, 2007

Appl. No.:

11/736886

Inventors:

Gary L. Hunter - Elburn IL, US
Kresimir Gebert - Villa Park IL, US

Assignee:

International Engine Intellectual Property Company, LLC - Warrenville IL

International Classification:

F02B 17/00

US Classification:

123298

Abstract:

A mixing and combustion process for a compression ignition engine () creates an in-cylinder compressed gas charge of air and recirculated exhaust that has a temperature high enough to initiate and sustain combustion of diesel fuel that is subsequently injected. A fuel injector () injects diesel fuel directly into the charge using an injection pressure that is sufficiently great to cause fuel to be injected through each of multiple orifices arranged in a geometric pattern in a nozzle () of the fuel injector at an initial velocity that is great enough to cause the injected fuel in moving through the compressed gas charge to creates fuel/charge mixtures throughout a substantial portion of the respective combustion chamber before the kinematics of combustion can become effective to combust more than at most a relatively small amount of the injected fuel.

US Patent:

8584458, Nov 19, 2013

Filed:

May 21, 2010

Appl. No.:

12/785095

Inventors:

Ho Teng - Canton MI, US
Gerhard Regner - San Diego CA, US
Gary Hunter - Dexter MI, US

Assignee:

AVL Powertrain Engineering, Inc. - Plymouth MI

International Classification:

F02B 33/44

US Classification:

606052, 60600, 60604, 606051, 60616, 60299

Abstract:

A power plant includes an engine configured to receive charge air and produce exhaust. A first turbo machine is configured to be driven by the exhaust and drive a compressor that receives air. The compressor is configured to produce the charge air. A second turbo machine is configured to receive a portion of the exhaust and rotationally drive a pump in response thereto. High temperature and low temperature EGR heat exchangers are arranged in the exhaust gas recirculation passage serially relative to one another upstream from the pump. A heat exchanger arranged in the exhaust gas recirculation passage upstream from the pump. A water separator is arranged in the exhaust gas recirculation passage fluidly between the heat exchanger and the pump. An EGR catalyst is arranged in the exhaust gas recirculation passage upstream from the heat exchanger.

US Patent:

20100293944, Nov 25, 2010

Filed:

May 21, 2010

Appl. No.:

12/785071

Inventors:

Gary Hunter - Dexter MI, US

International Classification:

F02B 33/44

US Classification:

606052, 60612

Abstract:

A power plant includes an engine configured to receive charge air and produce exhaust. A first turbo machine is configured to be driven by the exhaust and drive a compressor that receives air. The compressor is configured to produce the charge air. A second turbo machine is configured to receive the charge air and rotationally drive a pump in response thereto. The pump is configured to receive an EGR from the exhaust and introduce the pumped EGR to the charge air. The power plant also includes an exhaust gas recirculation passage. The second turbo machine includes a turbine rotationally coupled to the pump. The turbine has an expanded air passage, and the pump is arranged in the exhaust gas recirculation passage. A pre-cooler is arranged in the expanded air passage and in the exhaust gas recirculation passage upstream from the pump.

US Patent:

20140075936, Mar 20, 2014

Filed:

Nov 18, 2013

Appl. No.:

14/082699

Inventors:

Gerhard REGNER - San Diego CA, US
Gary HUNTER - Dexter MI, US

Assignee:

AVL POWERTRAIN ENGINEERING, INC. - Plymouth MI

International Classification:

F02M 25/07

US Classification:

606052

Abstract:

A power plant is provided and may include an engine configured to receive charge air and produce exhaust. A first turbo machine may be driven by the exhaust and may drive a compressor that receives air and produces the charge air. A second turbo machine may receive the exhaust and may rotationally drive a pump in response thereto. The pump may receive an EGR from the exhaust and may introduce the pumped EGR to the charge air.

US Patent:

20180106210, Apr 19, 2018

Filed:

Oct 12, 2017

Appl. No.:

15/782356

Inventors:

- Plymouth MI, US
Gary HUNTER - Dexter MI, US

International Classification:

F02F 1/16
F02B 75/28
F01P 3/02

Abstract:

An oil cooled cylinder liner, a method for cooling the same, and an opposed piston engine using the oil cooled cylinder liner are described. The cylinder liner includes a liner wall that has an inner face adjacent a piston bore and an outer face including an oil gallery surface. A plurality of grooves are disposed along the oil gallery surface. The grooves run parallel to each other and are spaced apart by bridging portions of the liner wall. At least some of the grooves have at least one fin disposed therein that runs parallel with the grooves. The grooves in combination with the fins increase surface area of the oil gallery to improve heat transfer from the liner wall to oil disposed along the oil gallery surface.

US Patent:

20160252043, Sep 1, 2016

Filed:

Feb 23, 2016

Appl. No.:

15/050707

Inventors:

- Plymouth MI, US
Jeffrey Wayne KLAVER - Ypsilanti MI, US
Gary L. HUNTER - Brighton MI, US

International Classification:

F02F 1/00
F02F 3/00
F02F 1/02

Abstract:

An example of a cylinder liner according to the present disclosure includes a first portion having a first end and a second end and a second portion having a first end and a second end. The second portion is separate from the first portion and the second end of the first portion overlays the first end of the second portion. The first portion and the second portion are configured to receive a piston slideably disposed within the first portion and the second portion.